A simplified method to estimate the soil-water characteristic curve

作者：Chin Kheng Boon; Leong Eng Choon^*; Rahardjo Harianto

来源：Canadian Geotechnical Journal, 2010, 47(12): 1382-1400.

DOI：10.1139/T10-033

• unsaturated soil
• coarse-grained
• fine-grained
• soil-water characteristic curve

This paper proposes a simplified method to estimate the soil-water characteristic curve (SWCC) for both coarse-and fine-grained soils using one-point SWCC measurement and basic index properties. Parameters of the Fredlund and Xing SWCC equation were correlated with the basic properties of 60 soils: 30 soils each of coarse-and fine-grained types. Sensitivity analysis revealed that the location of the one-point measurement at matric suctions of 10 and 500 kPa gave the most reliable SWCC using the proposed method for coarse-and fine-grained soils, respectively. The validity of the proposed method was evaluated using a total of 62 soils collated from published literature with 31 soils each of the coarse-and fine-grained types. The proposed method gives a good estimation of the SWCC and uses fewer parameters when compared with existing one-point SWCC estimation methods.

• 出版日期2010-12
• 单位南阳理工学院